Window-screen.



PATBNTED JUNE 7, 19-04. G. H. STOUT & L. A. TURNER.

WINDOW SCREEN.

APILIOAT ION IILED SEPT. 12, 1903.

no MODEL.

sses 1 UNIT D; STATES Patented June '7, 1904.

PATENT OFFICE.

GEORGE H. STOUT AND LUCIUS A. TURNER, OF DENVER, COLORADO.

WlNDQW-SCREEN.

SPECIFICATION forming part of Letters Patent N 0. 761,791, dated June '7, 1904. Application filed September 12, 1903. Serial No. 172,951. (No model.)

To ctl whom it may concern.-

' Be it known that we, GEORGE H. S'rourand LUOIUS A. TURNER, citizens of the United States, residing in the city and county of Denver and State of Colorado, have invented a new and useful VVindow-Screen, of which the following is a specification.

This invention relates to improvements in window-screens in which the screen fabric is secured within the window-frame opening by top and bottom bars alone; and its objects are, first, the provision of means for hanging the top bar in fixed parallel relation withthe under face of the head of the window-frame and from which hangers said top bar may be readily removed by manipulation from the inside of the Window; second, to provide means for securing the bottom rail of the screen which will afford facilities for stretching and maintaining the screen fabric taut; third, to constructthe screen as far as practicable of metal; fourth, to make said top and bottom bars extensible so as to fit windows of unusual widths, and, fifth, to provide a screen of such simple construction as to be readily assembled and attached to the window-frame by unskilled hands, and therefore permits of its being shipped incomplete or complete as to parts, but unassembled. These objects are attained by the mechanismand novel features of structure illustrated in the accompanying drawings, in which- I Figure l is an inside perspective view of a window-frame with screen attached. Fig. 2 is an outside View of the same. Fig. 3 is a detail, enlarged. of one end of the bottom bar. Fig. 4 is an outside View of one end of the top bar, showing the extensible end clip.

Fig. 5 is a vertical section taken through the t window frame and screen. Fig. 6 is an enlarged perspective of the screen, proper and its attached mechanism. Fig. 7 shows the screw-eyes which form the fulcrum-bearings of the cam-levers. L

The screen fabric, preferably of wire, is secured at its top and bottom to identical bars 1 and 2. These bars are formed of sheet metal and bent to form a hollow trough 3, preferably rectangular in cross-section and having one side of said trough left open and flared lips extending from either edge of the trough-opening, one of the flared lips 4.- being wider than the other, the outer edge of the flared lip 4 being turned back upon itself, as at 5, Figs. 3, 4E, and 6, and the other edge of the narrow flared lip also being turned back upon itself, as at '6, Figs. 3, 4:, and 6, to strengthen the bar and for a further purpose presently stated.

To secure the'screen fabric to its top and bottom bars, the bars are laid on a flat surface with their flared lips 4: extending in opposite directions and the troughs opening upward. The fabric is then laid over the trough-openings and pressed downward therein by a fillerpiece 7 ,preferably of wood and of nearly the the screen on headed studs 10, driven in the outer faces of the blind-stop of the windowframe. Handles 11 are provided on the inside of the top bar. The screen is stretched taut and secured at its bottom by the camin the socket-eyes 13, screwed into the'inner faces of the blind-stop, and a movable cam bearing downward on shelves 14:, secured to the inside ofthebottom bar near its ends and which are maintained in their downward position by the hooks 15, which engage the free or power ends of the cam-levers. These camlevers are secured to the bottom bar by the slack chains 16 to prevent their loss when the screen is removed or loosened. The camshelves 14: are secured to the bottom bar by the same bolts 8 which secure the fabric and filler-piece 7 in the bar-trough.

It should be understood that f or commerce the screen is shipped unassembled, and in most cases the fabric will be provided by'the purchaser, and as window-frames are not of standard widths the bars when made for shipment should be extensible. This is provided for by the extensible clips 17 which are made of metal and in cross-section conform to the shape of the'bars, but are a little larger, so as to fit over the end of the bars, and preferably levers 12, which have an end fulcrum-bearing do not have the edges of their flared lips 4' and 6 bent upon themselves, but are left raw.

To secure the extensible clips 17 upon the ends of the bars, the clip and bar are placed end to end and telescoped, the flared lips 4 and 6 of the clip sliding under the returnbends 5 and 6 of the edges of the flared lips of the bars. The clips are held in position by the bolts 8, and in order to permit of their endwise adjustment the bolt-holes in the bottom of the troughs of both bar and clip are elongated into slots 18 and 19, Figs. 2 and 4:. The elongation of the bolt-holes is especially necessary in the bottom bar, so that the camshelf may be laterally shifted to accommodate the stretching of the screen fabric from wear.

When the screen is custom-made, the extensible clips need not be provided, as the varying widths of the windows may then be known.

The fabric is secured within the hollow trough of the bars in the same manner as before described whether the clips be or be not used.

The screen being constructed as above described, the operation of hanging the same is as follows: Two headed studs 10 are screwed into the outer faces of the blind-stop of the window-frame at their upper corners and two right-angled screw-eyes 13, Fig. 7, are screwed into the opposing faces of the blind-stops near their lower ends. The upper sash of the window-frame is then lowered and the screen grasped by its handles 11, thrust out, and its top bar hung over the studs 10 by its keyhole hanging-slots 9 and allowed to fall, so that the narrow part of the keyhole-slots is engaged behind the head of the studs. In this position the two flared lips of the top bar bear fiat against the outer faces of the blind stop, the wide flared lip 4 bearing throughout its length tightly against the outer face of the head-piece of the blind-stop. The screen now hangs down with its side edges bearing against the outer faces of the vertical blind-stop. The lower bar of the screen is then positioned against the outer faces of the subsill of the window and with its flared lip behind the stops 20, which project from the opposing faces of the brick-mold. The camlevers are then inserted in the fulcrum bearing-eyes 13, and also positioned on the camshelves 14, as shown in dotted lines in Fig. 1. The free or power ends of the cam-levers are then pressed down and secured under the hooks 15. In bearing down on the free ends of the cam-levers the cam slides on the shelf from a point on its reduced face to a point on its bulged face and depresses the screen bottom bar downward for a distance sufficient to stretch the screen taut, so as to hold its side edges flat against the blind-stop and maintain the window-opening closed against insects. The free ends of the cam-levers are sufficiently springy to permit a slight yielding on the screen fabric when the same is subjected to undue strain.

The short chains 21, which are secured at either end of the bottom bar by one of the bolts 8, extend to open hooks 22 on the window-frame and serve to prevent a possible flapping of the lower end of the screen when the same is loosened for dusting the window sill.

To remove the screen, the cam-levers are first released and withdrawn from their fulcrum socket-bearings I?) and the bottom bar lifted from behind the steps 20. The top bar and with it the entire screen is then lifted up until the wide part of the keyhole-slot can be pushed off the studs 10.

hen it is only desired to remove the lower end of the screen for dusting or for handing something out, the chains 21, which are secured to the bottom bar and to the windowframe, are sufiiciently long to permit the opening of the screen wide enough for most occasions.

o claim- 1. In a wimlow-screen of the class described, top and bottom bars made of sheet metal and bent to form longitudinal troughs with flared lips extending in opposite directions from the open edges of the hollow of the troughs, one flared lip of the top bar being provided with keyhole hanging-slots, filler-pieces secured within and nearly filling said troughs, a sheet of screen fabric pressed and secured at its ends within said bar-troughs by said lillerpieces, substantially as described.

2. A detachable window-screen having only horizontal top and bottom frame-bars the top bar of which is hung upon studs projecting from the outer face of the window-frame and the bottom bar of which is stretched and held down toward the sill of the window-frame by take-up cam-levers having an end fulcrumbearing on the inner faces of the sides of the window-frame and provided near their ends with cams reduced toward their fulcrum ends having bearingon the cam-shelves projecting from the inner face of said bottom bar, hooks on said bottom bar engaging the free end of said cam-levers and maintaining them in a depressed position, substantially as described.

3. In a window-screen having only top and bottom frame-bars, means for securing its top bar in lixed parallel relation to the under face of the window-frame head, means for holding the vertical edges of the screen fabric close against the outer faces of the sides of the window-frame consisting of take-up cam-levers carried on and near the ends of the bottom bar having end fulcruiii-bearings in the inner faces of the sides of the wimlow-frame, provided with cams near their ends whose faces are reduced toward their ends, camshelves projecting inwardly from said bottom bars and forming bearings for said cam-levers, hooks located on said bar inwardly from said cam-shelves adapted to engage the depressed free ends of said cam-levers substantially as described.

4. In a window-screen of the class described, top and bottom bars made of sheet metal and bent to form longitudinal troughs with flared lips extending in opposite directions from the open edges of the hollow of the troughs, telescoping extensible end clips at either end of said bars bent to have the same contour in cross-section, means for securing said end clips thereon in a predetermined telescoped position, filler-pieces secured within and nearly filling the troughs in the bars and their telescoping extensible end clips, and a sheet of screen fabric pressed and secured at its top and bottom ends within said bar-troughs by said filler-pieces substantially as described.

5. In a window-screen of the class described, top and bottom bars made of sheet metal and bent to form longitudinal troughs with flared lips extending in opposite directions from the open edges of the hollow of the troughs, said flared lips havingtheir edges bent upon themselves on the side opposite the opening of-the troughs, telescoping extensible end clips at either end of said bars having the same contour in cross-section but not having the edges of their flared lips bent upon themselves, telescoping over said bars and under the returnbends of their flared lips and provided with keyhole hanging-slots in one of their flared lips, means for securing said end clips at a fixed telescoped position on said bars, fillerpieces secured within and nearly filling the troughs in the bars and their telescoping extensible end clips and a sheet of screen fabric pressed and secured at its top and bottom ends within said bar-troughs by said fillerpieces, substantially as described.

6.- In a window-screen having only top and bottom frame-bars, means of detachably securing its top bar in fixed parallel relation to the under face of the window-frame head,

means for detachably securing its bottom bar GEORGE I-I. STOUT. LUCIUS A. TURNER.

Witnesses:

A. ROLAND J OHNSON, SARA P. JoHNsoN. 

